| Board | CBSE |
| Textbook | NCERT |
| Class | Class 6 |
| Subject | Science |
| Chapter | Questions & answers for Chapter 7 Getting to know plants |
| Chapter Name | Chapter 7 Getting to Know Plants |
| Category | Worksheets |
Chapter 7 Getting to know plants Questions and Answers for class 6 Science
Find below Important MCQ-based objective questions for Chapter 7 Getting to know plants prepared for CBSE students. All the syllabus of Class 6 Science Chapter 7 Getting to know plants is covered with questions and answers. Each question is explained with a detailed solution. The entire syllabus of Chapter 7 Getting to know plants is covered in the following worksheet for class 6 science. For more worksheets for class 6 science click on the link and do check out NCERT solutions for class 6 science.
Find below Class 6 Science Chapter 7 Getting to know plants Questions & Answer
To check the answer and explanation click on the answer
Class 6 Science Chapter 7 Getting to know plants Questions & Answer Set-1
Science - MCQ on Geeting To Know Plants
Class VI
Q.1 Creepers and climbers are the plants, which have
a. thick stem.
b. canopy of braches.
c. weak stems.
d. tall stems.
Answer:
(c) weak stems
Creepers and climbers can not stand upright because of their weak stems. They spread on ground or take support of neighbouring objects.
Q.2 When we pass by shrubs and herbs, sometimes our clothes have seeds clinging on them. It supports
a. seed separation.
b. seed reproduction.
c. seed improvement.
d. seed dispersal.
Answer:
(d) seed dispersal
Seed dispersal is the movement or transport of seeds away from a parent plant.
Q.3 In a forest, the vegetation dominated by shrubs under a tree canopy forms
a. crown.
b. down storey.
c. hedge.
d. under storey.
Answer:
(d) under storey
Under storey is developed by plants slightly taller than our height under the canopy formed by much taller plants called trees. Crown is made by high trees while a hedge is the row of shrubs gets developed in some private land.
Q.4 The part of a plant, which helps in preventing soil erosion is
a. root.
b. stem. .
c. leaf.
d. flower.
Answer:
(a) root
The roots of plants helps to keep a firm hold on soil. The top layer of soil cannot be carried away by the action of wind or water.
Q.5 All animals, whether herbivores or carnivores depend directly or indirectly on
a. plants.
b. other animals.
c. human beings.
d. microbes.
Answer:
(a) plants
Plants are autotrophs and make their own food by the process of photosynthesis. Herbivores eat these plants and carnivores eat herbivores animals.
Q.6 Plants absorb water from soil through their roots and release water vapours into air by the process of
a. concentration.
b. evaporation.
c. condensation.
d. transpiration.
Answer:
(d) transpiration
Water is absorbed by root systems in plants. These root systems move the water in an upward direction through thin channels. The water then escapes in vapour form into air through the pores (stoma) present on the surface of leaves.
Q.7 If green plants disappear, then the amount of carbon dioxide from the earth will
a. decrease.
b. increase.
c. remain the same.
d. partially decrease.
Answer:
(b) increase
Green plants take up carbon dioxide and release oxygen during the process of photosynthesis. Thus, the absence of plants will definitely affect the amount of these gases on the earth.
Q.8 A very significant process performed by all green plants to produce food is known as
a. nutrition.
b. excretion.
c. phototropism.
d. photosynthesis.
Answer:
(d) photosynthesis
Photosynthesis is the production of carbohydrates by plants from carbon dioxide and water in the presence of green pigment called chlorophyll. Plants use energy captured from sunlight and release excess oxygen as the byproduct.
Q.9 The most commonly used plant in making ayurvedic medicines is
a. herb.
b. shrub.
c. climber.
d. trees.
Answer:
(a) herb
Herbs are green, tender, small and non-woody plants, e.g., wheat, tulsi, etc. Besides medicine, they are also used in making scents and other cosmetic items.
Q.10 In the process of photosynthesis, energy comes from
a. sunlight.
b. water.
c. chloroplast.
d. CO2.
Answer:
(a) sunlight
Photosynthesis is a metabolic pathway that converts light energy into chemical energy in green plants. Its initial substrates are carbon dioxide and water. The source of energy is sunlight.
Q.11 The part of a plant, which holds it into soil is
a. stem.
b. roots.
c. root nodules.
d. branches.
Answer:
(b) root.
Roots perform a function of absorbing water and minerals from the soil. Apart from this, it also helps in firmly fixing a plant into the ground.
Q.12 In a flower, male gametes are found inside the
a. pistil.
b. ovary.
c. style.
d. pollen grains.
Answer:
(d) pollen grains
Stamens, which are the male reproductive parts of a flower, bear anthers on their tips. These anthers contain pollen-grains inside them. Pollen grains produce male gametes for sexual reproduction. Pistil, ovary and style are the female reproductive parts in a plant.
Q.13 Reproductive parts of a plant are present in
a. leaves.
b. flowers.
c. roots.
d. fruits.
Answer:
(b) flowers
Flowers perform the function of reproduction, i.e., producing new-individuals. Some flowers are unisexual, i.e., they contain either the male part or the female part. While, some flowers are bisexual, i.e., they contain both the male and female parts.
Q.14 Plants commonly used for in-door ornamental purposes belong to
a. shrub.
b. herb.
c. climber.
d. tree.
Answer:
(a) shrub
Shrubs are the medium-sized bushy plants with least thickness and height. They are perennial (having long life cycle).
Q.15 Flowers, which bear both stamens as well as pistil, are called
a. bisexual flowers.
b. unisexual flowers.
c. multisexual flowers.
d. monosexual flowers.
Answer:
(a) bisexual flowers
Bisexual means bearing both male and female parts. Stamen is the male reproductive part of a flower and pistil is the female reproductive part of a flower. Mustard, rose and petunia plants have bisexual flowers.
Q.16 Organisms on the earth, which are responsible for the formation of food are
a. animals.
b. plants.
c. bacteria
d. parasites.
Answer:
(b) plants
All green plants prepare their food in the presence of sunlight with the help of carbon dioxide and water. Therefore, they are considered as autotrophs.
Q.17 Small-sized plants with weak stem are called
a. herbs.
b. shrubs.
c. trees.
d. bushes.
Answer:
(a) herbs
Herbs are green, small non-woody plants with soft stem, e.g., wheat, tulsi, etc. Trees, shrubs and bushes have woody stems.
Class 6 Science Chapter 7 Getting to know plants Questions & Answer Set-2
Q.18 The primary site of photosynthesis in a green plant is
a. leaf.
b. flower.
c. root.
d. fruit.
Answer:
(a) leaf
Photosynthesis takes place primarily in green plant leaves and little to none occurs in stems, etc. Parts of a typical leaf include the upper and lower epidermis, bordering the mesophyll cells having chloroplast to perform photosynthesis.
Q.19 In a plant, lamina is a part of
a. leaf.
b. flower.
c. root.
d. fruit.
Answer:
(a) leaf
Lamina is flat, thin and broad with conspicuous system of veins and veinlets.
Q.20 Fruit of a plant is also known as
a. zygote.
b. female gamete.
c. matured ovary.
d. embryo.
Answer:
(c) a matured ovary
After fertilization, the ovary of a plant grows into a fruit while all other parts of a flower fall-off. Thus, fruit is a ripened ovary, which encloses seeds within it.
Q.21 Depending upon the thickness, root hairs are
a. unicellular.
b. bicellular.
c. tricellular
d. multicellular.
Answer:
(a) unicellular
Root hairs are very fine threadlike extensions that grow from a plant root and are always unicellular.
Q.22 Seeing the branching pattern of a shrub, branches as compared to the main stem are
a. at lower level.
b. parallel.
c. at higher level.
d. at similar level.
Answer:
(c) at higher level
Branches are further divided into many little branches. These branches are higher than the main stem, which is very small.
Q.23 The plants which cannot expose their leaves to sunlight while competing with erect plants are
a. herbs.
b. trees.
c. weak plants.
d. shrubs.
Answer:
(c) weak plants
Weak plants are the plants, which have weak stems. These cannot stand erect by themselves.
They are of two types:
1. Creepers
2. Climbers
Q.24 Most of the roots are
a. green.
b. colourless.
c. grey.
d. Blue.
Answer:
(b) colourless
Root is the colourless structure of a plant as it has no chlorophyll or any other pigment.
Q.25 Woody plants with greatest thickness and height amongst all plants ar/p>
a. herbs.
b. shrubs.
c. trees.
d. climbers.
Answer:
(c) trees
The trunk of a tree is simple, thick and generally divided into many branches. These branches are further divided into many other little branches.
Q.26 In plants, oxygen is released during the process of
a. nutrition.
b. transpiration.
c. photosynthesis.
d. respiration.
Answer:
(c) photosynthesis
Green plants in presence of sunlight use CO2 and water to produce carbohydrates and O2.
Q.27 It has been observed that the colour of stem in the majority of plants is
a. brown.
b. rust.
c. grey.
d. green.
Answer:
(d) green.
Stem is green due to the presence of some amount of chlorophyll pigment.
Q.28 Petiole in a plant is the part of
a. root.
b. leaf.
c. flower.
d. fruit.
Answer:
(b) leaf
Petiole is a small stalk by which a leaf is attached to a stem.
Q.29 The medium-sized plants slightly higher than our height fall in the category of
a. herbs.
b. shrubs.
c. climbers.
d. trees.
Answer:
(b) shrubs
The stems of shrubs are woody and perennial (having long life). They are generally bushy and twiggy.
Q.30 In a leaf, veins can be visualized in the form of
a. scratches.
b. lines.
c. holes.
d. sticks.
Answer:
(b) lines
Veins are the part of a leaf, which are actually vascular tissues that carry water and food.Science - MCQ on Body movementsClass VI